Java Utililty Methods Array Sum

List of utility methods to do Array Sum

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Description

The list of methods to do Array Sum are organized into topic(s).

Method

bytesum(byte... bytes)
sum 
byte total = 0;
for (byte b : bytes) {
    total += b;
return total;
bytesum(byte[] array)
Sum all numbers from array. 
byte sum = 0;
for (byte x : array) {
    sum += x;
return sum;
intsum(byte[] array)
Sums the values of elements in an array. 
int result = 0;
for (final byte v : array) {
    result += v;
return result;
intsum(byte[] array, int offset, int size)
XOR checksum of a byte array range 
int sum = 0;
for (int i = offset; i < offset + size; i++)
    sum ^= array[i];
return sum;
intsum(byte[] array, int offset, int size)
sum 
int sum = 0;
for (int i = offset; i < offset + size; i++)
    sum ^= array[i];
return sum;
byte[]sum(byte[] in, byte[] gamma)
componentwise addition modulo 2 (XOR) 
byte[] out = new byte[in.length];
for (int i = 0; i < in.length; i++) {
    out[i] = (byte) (in[i] ^ gamma[i]);
return out;
doublesum(double a[], int begin, int end)
sum 
double res = 0;
for (int i = begin; i < end; i++) {
    res += a[i];
return res;
doublesum(double values[], int size)
sum 
if (values == null) {
    return Double.NaN;
if (size == 0) {
    return 0;
double r = 0;
for (int i = 0; i < size; i++) {
...
doublesum(double... a)
sum 
if (a == null) {
    return 0;
if (a.length == 0) {
    return 0;
double sum = 0;
for (double d : a) {
...
doublesum(double... values)
Sums up the values. 
double sum = 0.0d;
for (double val : values)
    sum += val;
return sum;